What I said is a little confusing. Generally speaking, it doesn't help much to take the O-level subjects, but it can help you get the CCA level outside the exam, reducing 2 points. But it is not recommended to spend too much energy on it. After all, there are many ways to get CCA A. You can ask your CCA teacher what methods can help you get an A.

I am fully qualified to answer this question.

According to you, your classmates are making a fuss about CCA.

If your CCA score is A, you can enjoy 2 points plus points at O Level (when calculating the score line), while the admission of JC and POLY depends on the score line, for example, you can go to HCI. RI is 4, you can only go to VJC or NJC. TJC 6 (please refer to my space for a detailed introduction of CCA).

The significance of the Olympic Mathematics course is to help you win prizes in SMO and get more CCA scores. When the CCA score exceeds 20, your score is A, which can be counted as 2 points plus points.